Growth of the green algae Chlamydomonas reinhardtii under red and blue lasers

Sara S. Kuwahara, Joel L. Cuello, Graham Myhre, Stanley Pau

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


Red and blue lasers, holding promise as an electric light source for photosynthetic systems on account of being true monochromatic, high-power, and having high electrical-conversion efficiency, were employed in growing a green alga, Chlamydomonas reinhardtii. The laser treatments tested included: 655-nm Red; 680-nm Red; 655-nm Red474-nm Blue and 680-nm Red474-nm Blue. A white cold cathode lamp with spectral output similar to that of white fluorescent lamp served as control. C. reinhardtii successfully grew and divided under the 655 and 680-nm red lasers as well as under the white-light control. Supplementing either red with blue laser, however, resulted in increased algae cell count that significantly exceeded those under both red lasers and the white-light control on average by 241%.

Original languageEnglish (US)
Pages (from-to)434-438
Number of pages5
JournalOptics and Lasers in Engineering
Issue number3
StatePublished - Mar 2011


  • Algae
  • Chlamydomonas reinhardtii
  • Electric lighting
  • Lasers

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Mechanical Engineering
  • Electrical and Electronic Engineering


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